64 resultados para desempenho ambiental


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Pós-graduação em Engenharia Civil e Ambiental - FEB

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Pós-graduação em Engenharia Civil e Ambiental - FEB

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The non existence of sewage services creates an unhealthy environmental, causing impact extremely prejudicial to the human health. In Brazil, this item represents the biggest deficit in the basic sanitation these days, and only about 50% of the population is attended. The sewage collection network is a needful system for the basic sanitation. Between the parameters of the project of a system of collection and sewage transportation, the definition of the population that will be attended is one of the most important variables, and that should be done based on criterion of population growth and in accordant to directrix presents in the comprehensive city plan. In this paper, were evaluated methods of growth based on the geometric growth rate, on the population density and on the number of residents per dwelling, and also mathematics models of growth prediction, emphasizing in the geometric growth and on the logistic curve method. That way, the goal of this paper were value the hydraulic performance in one of the watersheds delimited by the sewage network magnification work existent in the city of Cacoal–RO. Using simulation with different scenarios, the results pointed that the hydraulic performance of the system were strongly affected by the population determination method used. For the same drained area the diameters range from 150 to 250 mm as well as the trench’s deep, where some stretches exceeded the maximum values contained in the standard. Besides, the variation of the sewage contribution rate due the population variation estimated in different scenarios, led to alterations in others important project parameters, such as slope, shallow pool, tensile stress and spreading velocity

Relevância:

30.00% 30.00%

Publicador:

Resumo:

With the imposition of the suspension of production and subsequent banning of incandescent light bulbs will be necessary to replace it by other more energy-efficient. Although the main alternative is the compact fluorescent lamp, the environmental impact caused by it due to incorrect disposal and the amount of harmonics included in the network resulting in losses related to the quality of electric power system makes them sought new alternatives for lighting systems that are efficient and have low environmental impact. In this context, the LED (Lighting Emitting Diode), based on solid-state components, is presented as an option for new projects and replacement of existing lighting. In this work we studied aspects of energy, environmental and economic impacts of a possible replacement of conventional lighting systems for new technology. From laboratory tests and surveys of the costs of different types of lamps used for residential lighting, we performed a comparative analysis considering energy and economic aspects which showed that the LED technology, but has a high initial investment, it is best when power quality and environmental preservation are relevant factors in decision making for the choice of technology to be used in the lighting system

Relevância:

30.00% 30.00%

Publicador:

Resumo:

El presente trabajo tiene como objetivo una presentación de políticas públicas ambientales, teniendo como foco el Proyecto “Municipio VerdeAzul” (PMVA), lanzado por la Secretaria de Medio Ambiente del Estado de São Paulo en 2007, que tiene como característica la descentralización y comparte la gestión ambiental con los municipios. De esta manera, como estudio de caso fue realizado un análisis del desarrollo y de los resultados del municipio de Magda-São Paulo en la aplicación de ese proyecto en el año 2010. Para eso, se utilizó una metodología basada, inicialmente en la revisión bibliográfica sobre los temas envueltos, seguida del levantamiento de datos oficiales colectados en trabajo de campo y en sitios de órganos públicos, bien como entrevistas con dirigentes municipales para la realización del análisis e interpretación de esos dados. La investigación permitió concluir que el municipio de Magda obtuvo buenos resultados a partir de la participación en el PMVA, que se presenta como una política pública ambiental estratégica, avanzando en la perspectiva de actuación del poder municipal en la gestión del medioambiente

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Hybrid composites combining metal plates and laminates with continuous fiber reinforced polymer, called fiber-metal (CHMF), have been particularly attractive for aerospace applications, due mainly to their high mechanical strength and stiffness associated with low density. These laminates (CHMF) consist of a sandwich structure consisting of layers of polymer composites and metal plates, stacked alternately. This setting allows you to combine the best mechanical performance of polymer composites reinforced with long fibers, to the high toughness of metals. Environmental effects should always be considered in the design of structural components, because these materials in applications are submitted to the effects of moisture in the atmosphere, the large cyclical variations of temperature around 82 ° C to -56 ° C, and high effort mechanical. The specimens of fibermetal composite were prepared at EMBRAER with titanium plates and laminates of carbon fiber/epoxy resin. This study aims to evaluate the effect of different environmental conditions (water immersion, hygrothermal chamber and thermal shock) of laminate hybrid titanium/carbon fiber/epoxy resin. The effects of conditioning were evaluated by interlaminar shear tests - ILSS, tensile, and vibration free

Relevância:

30.00% 30.00%

Publicador:

Resumo:

O presente trabalho de conclusão de curso é composto por uma revisão bibliográfica sobre a fitase e um relatório sobre o estágio supervisionado realizado na BRF S. A. em Rio Verde/GO. A busca por medidas de sustentabilidade, e a preocupação das indústrias e granjas avícolas com o meio ambiente ligadas ao fator econômico torna a utilização da fitase cada vez mais difundida entre a avicultura moderna. O uso da suplementação enzimática com fitase nas dietas dos frangos de corte diminui a necessidade de utilizar fontes inorgânicas de fósforo, reduzindo os custos com a produção das rações. A fitase também beneficia as aves com uma maior biodisponibilidade de macro e micronutrientes, por hidrolisar o ácido fítico. A utilização da fitase pode ser um adjuvante nas dietas para frangos de corte em diferentes fases de criação, melhorando índices zootécnicos e contribuindo para a redução da poluição ambiental por reduzir elementos como o fósforo e o nitrogênio das excretas das aves

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The objective of this study was to analyze the performance of solid waste management in the municipality of Tibagi, Paraná, a city with approximately 20000 inhabitants, which implemented the selective collection program called Recycle Tibagi. The analysis was based on descriptive statistical techniques, considering the three types of waste (tailings, organic and recyclable), and per capita generation of garbage upward trend in the coming years, based on the method of Winter (Triple Exponential Damping), using data recorded by the Department of the Environment and the Association of Recyclable Materials from Tibagi - ACAMARTI. Efficient selective collection from a structured environmental education program with constant training conducted with the scavengers, possible to obtain important data in sorting and marketing of recyclable materials, saving raw materials, water and energy, as well as relevant indicators social inclusion and employment generation and income. The project involves several areas of municipal management and arouses curiosity and interest in several areas: social, financial, environmental and administrative. It's a way to encourage new projects and public bodies, highlighting the importance of recycling and proper disposal of solid waste.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Pós-graduação em Engenharia Mecânica - FEG

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)